Home / 1,277-2,702

Finding the Third Proportional to 1,277 and 2,702

Calculator

Solution

The third proportional to 1,277 and 2,702 is: 5,717.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277 : 2,702 = 2,702 : x
  2. Step 2: Convert to fraction form
    1,277/2,702 = 2,702/x
  3. Step 3: Cross multiply
    1,277x = 2,702 × 2,702
  4. Step 4: Simplify right side
    1,277x = 7,300,804
  5. Step 5: Solve for x
    x = 7,300,804/1,277
  6. Step 6: Final answer
    x = 5,717.15

Related Problems

Find third proportional to 638.50 and 1,351
Half scale
Find third proportional to 2,554 and 5,404
Double scale
Find third proportional to 1,279 and 2,706
Similar ratio
Find third proportional to 1,915.50 and 4,053
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.